Boolean operations (union, subtract, intersect, exclude) in Figma - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Boolean Union in Figma

In Figma, you have two overlapping shapes: a red circle and a blue square. You apply the Union boolean operation. What will be the visual result?

A A single shape combining both the circle and square areas, filled with the color of the top shape.

B Two separate shapes remain visible, overlapping with their original colors.

C Only the overlapping area of the circle and square is visible, filled with a mix of red and blue.

D The square shape is cut out from the circle, leaving a hole in the circle.

💡 Hint

Think about how union combines shapes.

The Union operation merges all selected shapes into one combined shape that covers all areas of the originals. The fill color is taken from the topmost shape.

🧠 Conceptual

intermediate

Result of Subtract Operation in Figma

You have a green rectangle and a yellow circle overlapping. You apply the Subtract boolean operation with the circle on top. What is the expected visual output?

A Both shapes remain unchanged and visible.

B The circle shape is removed from the rectangle, creating a hole in the rectangle where the circle overlapped.

C Only the overlapping area remains visible, filled with green.

D The two shapes merge into one shape with combined colors.

💡 Hint

Subtract removes the top shape area from the bottom shape.

The Subtract operation cuts out the top shape's area from the bottom shape, leaving a hole in the bottom shape where they overlapped.

❓ visualization

advanced

Visualizing Intersect Operation Result

Given two overlapping shapes, a purple triangle and an orange ellipse, you apply the Intersect boolean operation. Which visual result matches this operation?

A The triangle shape is removed from the ellipse, leaving a hole in the ellipse.

B Both shapes remain visible side by side without overlap.

C Only the overlapping area of the triangle and ellipse is visible, filled with the color of the top shape.

D The two shapes merge into one shape covering all areas.

💡 Hint

Intersect keeps only the shared area of shapes.

The Intersect operation keeps only the area where both shapes overlap, discarding all other parts.

🎯 Scenario

advanced

Using Exclude to Create a Complex Shape

You want to create a shape that shows all areas of two overlapping shapes except the overlapping part itself. Which boolean operation should you use in Figma?

A Subtract

B Union

C Intersect

D Exclude

💡 Hint

Think about removing only the overlapping area.

The Exclude operation removes the overlapping area from both shapes, leaving only the non-overlapping parts visible.

🔧 Formula Fix

expert

Troubleshooting Unexpected Boolean Operation Result

You applied the Subtract operation on two shapes in Figma, but the result shows no visible shape. What is the most likely cause?

A The top shape completely covers the bottom shape, removing it entirely.

B The shapes were not selected before applying the operation.

C The bottom shape was on top instead of the top shape.

D The shapes have different fill colors.

💡 Hint

Consider what happens if the top shape fully covers the bottom shape.

If the top shape fully covers the bottom shape, subtracting it removes the entire bottom shape, leaving nothing visible.

Practice

1.

Which Boolean operation in Figma combines two shapes into one shape that covers all areas of both?

easy

A. Subtract

B. Union

C. Intersect

D. Exclude

Solution

1. Step 1: Understand the Union operation

   Union merges two shapes into a single shape covering all areas of both shapes.

2. Step 2: Compare with other operations

   Subtract cuts one shape from another, Intersect keeps only overlapping parts, Exclude removes overlaps. Only Union combines fully.

3. Final Answer:

   Union -> Option B

4. Quick Check:

   Union = Combine all areas [OK]

Hint: Union joins all shapes fully without cutting [OK]

Common Mistakes:

• Confusing Subtract with Union
• Thinking Intersect combines all areas
• Mixing Exclude with Union

2.

Which of the following is the correct way to apply the Subtract Boolean operation in Figma?

1. Select two shapes
2. Click on Subtract in the Boolean operations menu
3. The top shape cuts out the bottom shape

easy

A. The top shape cuts out the bottom shape

B. The bottom shape cuts out the top shape

C. Both shapes merge into one shape

D. Only the overlapping area remains

Solution

1. Step 1: Recall Subtract operation behavior

   Subtract removes the area of the top shape from the bottom shape.

2. Step 2: Verify the direction of subtraction

   The top shape acts as the cutter, so it cuts out from the bottom shape, not the other way around.

3. Final Answer:

   The top shape cuts out the bottom shape -> Option A

4. Quick Check:

   Subtract = Top shape cuts bottom [OK]

Hint: Top shape always cuts out bottom in Subtract [OK]

Common Mistakes:

• Reversing which shape cuts which
• Thinking Subtract merges shapes
• Confusing with Intersect or Exclude

3.

Given two overlapping circles in Figma, what will the Intersect Boolean operation produce?

medium

A. A shape of the overlapping area only

B. A shape excluding the overlapping area

C. A shape of the first circle minus the second

D. A shape covering both circles completely

Solution

1. Step 1: Understand Intersect operation

   Intersect keeps only the overlapping area between two shapes.

2. Step 2: Apply to overlapping circles

   Only the area where both circles overlap remains visible after Intersect.

3. Final Answer:

   A shape of the overlapping area only -> Option A

4. Quick Check:

   Intersect = Keep overlap only [OK]

Hint: Intersect keeps only the overlap area [OK]

Common Mistakes:

• Thinking Intersect merges full shapes
• Confusing with Union or Subtract
• Assuming it excludes overlap

4.

In Figma, a user tries to apply the Exclude Boolean operation but the result is the same as Union. What is the likely cause?

medium

A. The user selected only one shape

B. The shapes are grouped, not boolean combined

C. The shapes are locked

D. The shapes do not overlap

Solution

1. Step 1: Recall Exclude operation effect

   Exclude removes overlapping areas between shapes, leaving non-overlapping parts.

2. Step 2: Analyze why result equals Union

   If shapes do not overlap, Exclude cannot remove anything, so it behaves like Union.

3. Final Answer:

   The shapes do not overlap -> Option D

4. Quick Check:

   No overlap means Exclude = Union [OK]

Hint: Exclude needs overlap to differ from Union [OK]

Common Mistakes:

• Assuming grouping affects Boolean results
• Thinking single shape can exclude
• Ignoring shape overlap requirement

5.

You have three overlapping shapes: A, B, and C. You want to create a new shape that includes all areas covered by A and B but excludes any area where C overlaps. Which Boolean operation sequence should you use?

hard

A. Intersect A and B, then Exclude C

B. Subtract C from A, then Union with B

C. Union A and B, then Subtract C

D. Exclude C from A, then Intersect with B

Solution

1. Step 1: Combine A and B fully

   Use Union to merge A and B into one shape covering all their areas.

2. Step 2: Remove overlap with C

   Use Subtract to cut out any area where C overlaps from the combined shape.

3. Final Answer:

   Union A and B, then Subtract C -> Option C

4. Quick Check:

   Union then Subtract excludes C overlap [OK]

Hint: Union first, then subtract to exclude overlap [OK]

Common Mistakes:

• Using Intersect instead of Union first
• Excluding before combining shapes
• Mixing order of operations